package org.fing.edu.uy.admin.filter;

import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class SessionFilter implements Filter {
	
    public SessionFilter() {}
	
	public void init(FilterConfig fConfig) throws ServletException {}

	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		HttpServletRequest requestServlet = (HttpServletRequest)request;
		HttpServletResponse responseServlet = (HttpServletResponse)response;
		
		if(requestServlet.getSession(false) == null || requestServlet.getSession(false).getAttribute("login") == null){
			responseServlet.sendRedirect(requestServlet.getContextPath() + "/login.xhtml");
		}else{
			chain.doFilter(request, response);
		}
	}
	
	public void destroy() {}

}
